CN115057548A - Treatment and reuse method for vulcanized fiber paper production wastewater - Google Patents
Treatment and reuse method for vulcanized fiber paper production wastewater Download PDFInfo
- Publication number
- CN115057548A CN115057548A CN202210587212.9A CN202210587212A CN115057548A CN 115057548 A CN115057548 A CN 115057548A CN 202210587212 A CN202210587212 A CN 202210587212A CN 115057548 A CN115057548 A CN 115057548A
- Authority
- CN
- China
- Prior art keywords
- zirconium phosphate
- fiber paper
- paper production
- vulcanized fiber
- heavy metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0211—Compounds of Ti, Zr, Hf
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0259—Compounds of N, P, As, Sb, Bi
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28047—Gels
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Dispersion Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to the field of wastewater treatment, and provides a method for treating and recycling vulcanized fibre production wastewater, aiming at the problem that zinc ions in the vulcanized fibre production wastewater are difficult to remove. The invention adopts a treatment method of coagulating sedimentation assisted by a heavy metal catching agent to ensure that the wastewater reaches the discharge standard, and has high efficiency and low energy consumption.
Description
Technical Field
The invention relates to the field of wastewater treatment, in particular to a method for treating and recycling vulcanized fiber paper production wastewater.
Background
The papermaking wastewater is one of the main industrial pollution sources in China. The papermaking wastewater has the characteristics of large discharge amount, complex pollutants, difficult treatment and the like, and influences the environment while hindering the development of the papermaking industry. The impurities in the wastewater from the vulcanized fiber paper production are mainly zinc ions. In the prior art, chemical precipitation, ion exchange, electrolysis, adsorption and the like are commonly adopted to treat heavy metal ions in wastewater. The chemical precipitation method is the most extensive treatment method at present, and for zinc ions, OH is mostly adopted - For example, patent CN107986321A discloses a method for extracting zinc from wastewater containing iron and zinc and preparing zinc hydroxide, belonging to the field of waste recycling. The method comprises the following steps: adding liquid alkali into the sludge containing iron and zinc, uniformly stirring, adjusting the pH value of the wastewater containing iron and zinc to 4-6.5 at 15-35 ℃, and simultaneously introducing oxidizing gas for low-temperature oxidation for 4-8 h. And (3) completely oxidizing the ferrous oxide, filtering to obtain a solution, adding an alkaline substance at 15-35 ℃ to adjust the pH value to 9-12 to obtain a white precipitate, filtering, and naturally drying to obtain the high-purity zinc hydroxide. The method is an effective process for recovering zinc from iron-containing zinc-containing wastewater of a hot galvanizing plant, is limited by the solubility of zinc hydroxide, and is difficult to control the concentration of zinc ions within the effluent water quality index when treating the vulcanized fiber paper production wastewater. Accordingly, an ideal solution is needed.
Disclosure of Invention
The invention provides a method for treating and recycling vulcanized fibre production wastewater, aiming at overcoming the problem that zinc ions in the vulcanized fibre production wastewater are difficult to remove.
In order to achieve the purpose, the invention adopts the following technical scheme:
a process for treating and reclaiming the sewage generated by production of steel paper includes collecting the sewage, aerating, regulating pH to 7-8, stirring, adding heavy metal as capturing agent, coagulant and coagulant aid, reaction, laying aside for deposition, returning the supernatant back to raw paper line, filter pressing, and returning the supernatant back to aerating pool.
Preferably, the zinc ion content in the vulcanized fiber paper production wastewater is less than or equal to 100mg/L, and the pH value is 3-6; the zinc ion content in the treated supernatant is less than or equal to 1mg/L, and the pH value is 6-8.
Preferably, an automatic alkali adding machine is adopted for adding alkali, and the alkali is NaOH.
Preferably, the mass ratio of the heavy metal trapping agent, the coagulant and the coagulant aid is (1-3) to (4-6) to (15-20).
Preferably, the coagulant is polyaluminium chloride, and the coagulant aid is polyacrylamide. Polyacrylamide is used for flocculation of a coagulation basin, and polyaluminium chloride is used for flocculation precipitation and water clarification.
Preferably, the preparation method of the heavy metal trapping agent comprises the following steps:
1) preparing zirconium phosphate into slurry, adding malic acid, adjusting the pH value to 4-5, reacting for 4-5h at 70-80 ℃, filtering, washing, drying, calcining, and crushing to obtain modified zirconium phosphate with the particle size of 500-700 nm;
2) adding the modified zirconium phosphate prepared in the step 1) and an acid catalyst into a water glass solution for reaction to prepare zirconium phosphate-silicon dioxide composite wet gel, washing and drying to obtain zirconium phosphate-silicon dioxide composite aerogel;
3) preparing the composite aerogel prepared in the step 2) into particles to obtain the heavy metal trapping agent.
The aerogel has high specific surface area and porosity (up to more than 90%), and the pores are communicated with the outside, so that the aerogel has very good adsorption property. But the pertinence is not very strong when the method is applied to zinc ion adsorption, therefore, zirconium phosphate is compounded in the aerogel, and the zirconium phosphate has larger specific surface area and surface charge density, can be used for ion exchange and is beneficial to zinc ion adsorption; and the existence of zirconium phosphate can enhance the mechanical property of the aerogel.
In order to further enhance the adsorption capacity of the heavy metal trapping agent on zinc ions, the zirconium phosphate is modified by malic acid. Hydroxyl on the surface of the zirconium phosphate layer can react with carboxyl of malic acid, the malic acid has 2 carboxyl and 1 hydroxyl, the grafted malic acid has one hydroxyl and one carboxyl, the hydroxyl can compensate the hydroxyl reduced by grafting of zirconium phosphate, and oxygen in the carboxyl has lone pair electrons and can be combined with a zinc ion empty orbit to form a coordination compound to adsorb more zinc ions. And the layered structure of the zirconium phosphate is not easy to be damaged after groups are introduced between zirconium phosphate layers, so that the mechanical property of the aerogel can be further enhanced.
Preferably, step 1) is: preparing zirconium phosphate into slurry, adding malic acid, adjusting the pH value to 4-5, reacting for 4-5h at 70-80 ℃, then adding 4-hydroxy carbazole, reacting for 2-3h, filtering, washing, drying, calcining, and crushing to obtain the modified zirconium phosphate with the particle size of 500-700 nm. Carbazoles are nitrogen-containing heterocyclic compounds with large pi-conjugated rigid planar structures. After the malic acid is grafted on the zirconium phosphate, the carboxyl grafting part of the 4-hydroxy carbazole of the malic acid is utilized to promote the coordination of carboxyl and zinc ions, and then a part of zinc ions which are difficult to adsorb before are adsorbed, especially the adsorption rate of the zinc ions is improved under the condition that the concentration of the zinc ions is relatively dilute. The amount of carbazole used is of course controlled appropriately.
Preferably, in the step 1), the concentration of the zirconium phosphate slurry is 30-40wt%, and the mass ratio of the zirconium phosphate to the malic acid to the 4-hydroxycarbazole is 100 (3-6) to (1-2).
Preferably, the calcination in the step 1) is calcination at 200 ℃ for 2-3h, and then calcination at 800 ℃ for 4-5 h.
Preferably, the concentration of the water glass in the step 2) is 1-2mol/L, the mass ratio of the water glass to the modified zirconium phosphate is (2-4):1, the reaction condition is pH 7-8, the reaction time is 3-5h, and the drying temperature is 140-200 ℃.
The acid catalyst is hydrochloric acid, nitric acid, acetic acid, sulfuric acid or hydrofluoric acid. The washing was performed 3 times using distilled water.
Therefore, the beneficial effects of the invention are as follows: (1) the treatment method of coagulating sedimentation assisted by heavy metal catching agent is adopted to ensure that the wastewater reaches the discharge standard, the efficiency is high, and the energy consumption is low; (2) the adsorption performance of the heavy metal trapping agent on zinc ions is improved by matching in many aspects such as aerogel pore adsorption, zirconium phosphate ion exchange, malic acid carboxyl coordination, 4-hydroxy carbazole molecular characteristics and the like.
Detailed Description
The technical solution of the present invention is further illustrated by the following specific examples.
In the present invention, unless otherwise specified, all the raw materials and equipment used are commercially available or commonly used in the art, and the methods in the examples are conventional in the art unless otherwise specified.
General examples
A vulcanized fiber paper production wastewater treatment and reuse method comprises the following steps:
(1) collecting the wastewater in a collecting tank, wherein the content of zinc ions in the wastewater is less than or equal to 100mg/L, and the pH value is 3-6;
(2) pumping the wastewater in the collection tank into an aeration reaction tank through a lift pump, adding alkali through pH automatic control to adjust the pH value to 7-8, automatically controlling the addition amount of the alkali through a pH meter, and starting mechanical stirring after the pH value reaches a specified value;
(3) adding a heavy metal trapping agent, a coagulant and a coagulant aid into the aeration reaction tank according to the mass ratio of zinc ion content of (1-3) to (4-6) to (15-20) to react;
(4) after the reaction is completed, standing and precipitating, wherein the content of zinc ions in the supernatant is less than or equal to 1mg/L, the pH is 6-8, and the supernatant is reused in a base paper production line; and (4) after the sludge at the bottom is subjected to filter pressing, returning clear liquid to the aeration reaction tank, and treating the sludge by a qualification unit.
The heavy metal trapping agent can be purchased from the market or prepared by self, and the preparation method of the self-prepared heavy metal trapping agent comprises the following steps:
1) preparing 30-40wt% of zirconium phosphate into slurry, adding malic acid, adjusting the pH value to 4-5, reacting for 4-5h at 70-80 ℃, adding 4-hydroxycarbazole, reacting for 2-3h, wherein the mass ratio of the zirconium phosphate to the malic acid to the 4-hydroxycarbazole is 100 (3-6) to (0-2), performing suction filtration, washing, drying, calcining, and crushing to obtain the modified zirconium phosphate with the particle size of 500 plus of 700nm, wherein the calcining is performed for 2-3h at 200 ℃ and 4-5h at 800 ℃;
2) adding the modified zirconium phosphate prepared in the step 1) and an acidic catalyst into 1-2mol/L of a water glass solution for reaction for 3-5h, wherein the mass ratio of the water glass to the modified zirconium phosphate is (2-4):1, the acidic catalyst is hydrochloric acid, the acidic catalyst is added until the pH of a mixed solution is 7-8, preparing zirconium phosphate-silicon dioxide composite wet gel, washing the gel for 3 times by using distilled water, and drying the gel at the temperature of 140-;
3) preparing the composite aerogel prepared in the step 2) into particles to obtain the heavy metal trapping agent.
Example 1
A vulcanized fiber paper production wastewater treatment and recycling method comprises the following steps:
(1) collecting the wastewater in a collecting tank, wherein the content of zinc ions in the wastewater is 100mg/L, and the pH value is 5;
(2) pumping the wastewater in the collection tank into an aeration reaction tank through a lift pump, adding NaOH to adjust the pH value to 8 through automatic pH control, automatically controlling the addition amount of the NaOH through a pH meter, and starting mechanical stirring after the pH value reaches 7;
(3) adding a heavy metal capturing agent (BC-05 SH) with a mass ratio of 2:5:18, a coagulant polyaluminium chloride and a coagulant aid polyacrylamide into an aeration reaction tank for reaction for 2 hours according to the amount of adding 10g of the heavy metal capturing agent into 1g of zinc ions;
(4) after the reaction is completed, standing and precipitating, wherein the content of zinc ions in the supernatant is less than or equal to 1mg/L, the pH is 7, and the supernatant is reused in a base paper production line; and (4) after the sludge at the bottom is subjected to filter pressing, returning clear liquid to the aeration reaction tank, and treating the sludge by a qualification unit.
Example 2
The difference from the embodiment 1 is that the heavy metal trapping agent is a self-made heavy metal trapping agent, and the preparation method comprises the following steps:
1) preparing 40wt% of zirconium phosphate into slurry, adding malic acid, adjusting the pH value to be 4, reacting for 5 hours at 70 ℃, adding 4-hydroxy carbazole, reacting for 2 hours, wherein the mass ratio of the zirconium phosphate to the malic acid to the 4-hydroxy carbazole is 100:4:2, performing suction filtration, washing, drying, calcining, and crushing to obtain modified zirconium phosphate with the particle size of 600nm, wherein the calcining is to calcine for 2 hours at 200 ℃ and then calcine for 4 hours at 800 ℃;
2) adding the modified zirconium phosphate prepared in the step 1) and an acidic catalyst hydrochloric acid into a 1mol/L water glass solution for reaction for 5 hours, wherein the mass ratio of water glass to the modified zirconium phosphate is 3:1, the acidic catalyst is added until the pH of the mixed solution is 7, preparing zirconium phosphate-silicon dioxide composite wet gel, washing the gel for 3 times by using distilled water, and drying the gel at 180 ℃ to obtain zirconium phosphate-silicon dioxide composite aerogel with the aperture of 10-15 nm;
3) preparing the composite aerogel prepared in the step 2) into particles to obtain the heavy metal trapping agent.
Example 3
The difference from the example 2 is that the calcination in the step 1) of preparing the self-made heavy metal trapping agent is carried out for 6h at 800 ℃.
Example 4
The difference from the embodiment 2 is that the mass ratio of the zirconium phosphate, the malic acid and the 4-hydroxy carbazole in the preparation step 1) of the self-made heavy metal trapping agent is 100:6: 2.
Example 5
The difference from the example 2 is that the mass ratio of the water glass to the modified zirconium phosphate in the preparation step 2) of the self-made heavy metal trapping agent is 3: 2.
Example 6
The difference from the embodiment 2 is that the preparation method of the self-made heavy metal trapping agent comprises the following steps:
1) preparing 40wt% of zirconium phosphate into slurry, adding malic acid, adjusting the pH to 4, reacting for 5 hours at 70 ℃, wherein the mass ratio of the zirconium phosphate to the malic acid is 100:4, performing suction filtration, washing, drying, calcining, and crushing to obtain modified zirconium phosphate with the particle size of 600nm, wherein the calcining is performed for 2 hours at 200 ℃ and then for 4 hours at 800 ℃;
2) adding the modified zirconium phosphate prepared in the step 1) and an acidic catalyst hydrochloric acid into a 1mol/L water glass solution for reaction for 5 hours, wherein the mass ratio of water glass to the modified zirconium phosphate is 3:1, the acidic catalyst is added until the pH of the mixed solution is 7, preparing zirconium phosphate-silicon dioxide composite wet gel, washing the gel for 3 times by using distilled water, and drying the gel at 180 ℃ to obtain zirconium phosphate-silicon dioxide composite aerogel with the aperture of 10-15 nm;
3) preparing the composite aerogel prepared in the step 2) into particles to obtain the heavy metal trapping agent.
Comparative example 1
The difference from the embodiment 2 is that the preparation method of the self-made heavy metal trapping agent comprises the following steps: adding an acidic catalyst hydrochloric acid into 1mol/L water glass solution, adjusting the pH value to 7, reacting for 5h, preparing silica wet gel, washing with distilled water for 3 times, and drying at 180 ℃ to obtain silica aerogel; and (4) preparing the prepared aerogel into particles to obtain the heavy metal trapping agent.
Comparative example 2
The difference from the embodiment 2 is that the preparation method of the self-made heavy metal trapping agent comprises the following steps: adding zirconium phosphate and acid catalyst hydrochloric acid into 1mol/L water glass solution for reaction for 5 hours, wherein the mass ratio of water glass to modified zirconium phosphate is 3:1, adding the acid catalyst until the pH value of the mixed solution is 7, preparing zirconium phosphate-silicon dioxide composite wet gel, washing the gel for 3 times by using distilled water, and drying the gel at 180 ℃ to obtain zirconium phosphate-silicon dioxide composite aerogel, wherein the aperture is 10-15 nm; and (4) preparing the composite aerogel into particles to obtain the heavy metal trapping agent.
Performance testing
The results of examination of the supernatants treated in the above examples and comparative examples are shown in the following table.
As can be seen from the table, the removal capability of the heavy metal scavenger prepared in the embodiment 2 of the invention on zinc ions is superior to that of the commercially available heavy metal scavenger, and the remarkable progress is achieved.
Compared with the example 2: example 3 when the modified zirconium phosphate was prepared by the one-step calcination method, the adsorption performance of the prepared heavy metal scavenger was reduced, since multi-step calcination could produce multi-stage pore sizes, which was beneficial to adsorption. Example 4 when the amount of malic acid used in the preparation of modified zirconium phosphate was out of the preferred range, the adsorption performance of the heavy metal scavenger thus prepared was reduced, which indicates that although the carboxyl group of malic acid may help to adsorb zinc ions, excessive malic acid would cover the pore size of zirconium phosphate, but adversely affect the adsorption. Example 5 when the amount of the modified zirconium phosphate used in the preparation of the composite aerogel exceeds the preferable range, the adsorption performance of the prepared heavy metal capturing agent is reduced, which shows that although zirconium phosphate is helpful for adsorbing zinc ions, the excessive addition of zirconium phosphate affects the pore adsorption structure of the silica aerogel itself. The zirconium phosphate modifying reagent of example 6 lacks 4-hydroxy carbazole, and the performance of the prepared heavy metal scavenger is inferior to that of example 2, which shows that the mutual matching of 4-hydroxy carbazole and malic acid can achieve better adsorption effect.
Compared with the example 2: comparative example 1 directly uses silica aerogel, and the adsorption performance of the prepared heavy metal trapping agent is far inferior to that of example 2, which shows that the adsorption performance can be remarkably improved by adding zirconium phosphate. The zirconium phosphate of comparative example 2 was not modified, and the performance of the obtained heavy metal scavenger was inferior to that of example 2, indicating that the zirconium phosphate modification was necessary.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.
Claims (8)
1. A process for treating and reclaiming the sewage generated by production of steel paper includes collecting the sewage, aerating, regulating pH to 7-8, stirring, adding heavy metal as capturing agent, coagulant and coagulant aid, reaction, laying aside for deposition, returning the supernatant to raw paper line, filter pressing, and returning the supernatant to aerating pool.
2. The vulcanized fiber paper production wastewater treatment and recycling method according to claim 1, wherein the content of zinc ions in the vulcanized fiber paper production wastewater is less than or equal to 100mg/L, and the pH value is 3-6; the zinc ion content in the treated supernatant is less than or equal to 1mg/L, and the pH value is 6-8.
3. The method for treating and recycling wastewater from vulcanized fiber paper production as defined in claim 1 or 2, wherein the mass ratio of the heavy metal capturing agent, the coagulant and the coagulant aid is (1-3) to (4-6) to (15-20).
4. The vulcanized fiber paper production wastewater treatment and recycling method according to claim 1, wherein the preparation method of the heavy metal capture agent comprises the following steps:
1) preparing zirconium phosphate into slurry, adding malic acid, adjusting the pH value to 4-5, reacting for 4-5h at 70-80 ℃, filtering, washing, drying, calcining, and crushing to obtain modified zirconium phosphate with the particle size of 500-700 nm;
2) adding the modified zirconium phosphate prepared in the step 1) and an acid catalyst into a water glass solution for reaction to prepare zirconium phosphate-silicon dioxide composite wet gel, washing and drying to obtain zirconium phosphate-silicon dioxide composite aerogel;
3) preparing the composite aerogel prepared in the step 2) into particles to obtain the heavy metal trapping agent.
5. The vulcanized fiber paper production wastewater treatment and recycling method according to claim 4, wherein 4-hydroxy carbazole is further added after the reaction in step 1) is finished, and the reaction is carried out for 2-3 hours.
6. The vulcanized fiber paper production wastewater treatment and recycling method according to claim 5, wherein the concentration of the zirconium phosphate slurry in the step 1) is 30-40wt%, and the mass ratio of zirconium phosphate, malic acid and 4-hydroxy carbazole is 100 (3-6) to (1-2).
7. The vulcanized fiber paper production wastewater treatment and recycling method according to claim 4, wherein the calcination in the step 1) is performed for 2-3 hours at 200 ℃ and 4-5 hours at 800 ℃.
8. The method for treating and recycling wastewater from vulcanized fiber paper production as recited in any of claims 4-7, wherein the concentration of the water glass in step 2) is 1-2mol/L, the mass ratio of the water glass to the modified zirconium phosphate is (2-4):1, the reaction conditions are pH 7-8 for 3-5h, and the drying temperature is 140-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210587212.9A CN115057548B (en) | 2022-05-26 | 2022-05-26 | Steel paper production wastewater treatment and reuse method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210587212.9A CN115057548B (en) | 2022-05-26 | 2022-05-26 | Steel paper production wastewater treatment and reuse method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115057548A true CN115057548A (en) | 2022-09-16 |
| CN115057548B CN115057548B (en) | 2023-09-22 |
Family
ID=83198204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210587212.9A Active CN115057548B (en) | 2022-05-26 | 2022-05-26 | Steel paper production wastewater treatment and reuse method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115057548B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4298723A (en) * | 1978-09-26 | 1981-11-03 | Occidental Research Corporation | Layered or amorphous acyclic organometallic inorganic polymers |
| US6229062B1 (en) * | 1999-04-29 | 2001-05-08 | Basf Aktiengesellschaft Corporation | Superabsorbent polymer containing odor controlling compounds and methods of making the same |
| JP2004016994A (en) * | 2002-06-19 | 2004-01-22 | National Institute Of Advanced Industrial & Technology | Heavy metal ion adsorbent, manufacturing method thereof and method of removing heavy metal ions using heavy metal ion adsorbent |
| US20060140840A1 (en) * | 2004-12-28 | 2006-06-29 | Raymond Wong | Method of synthesizing zirconium phosphate particles |
| CN1935356A (en) * | 2006-08-18 | 2007-03-28 | 南京大学 | Resin base adsorbent with high selectivity to heavy metal and preparing process thereof |
| EP2072117A1 (en) * | 2007-12-19 | 2009-06-24 | Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO | Sorbent material |
| CN105084603A (en) * | 2015-09-09 | 2015-11-25 | 杭州太一科技有限公司 | Treatment method and system of nickel-containing wastewater conforming to Water Pollutant Table III Discharge Standard |
| CN106512957A (en) * | 2016-11-21 | 2017-03-22 | 浙江农林大学 | Preparation method of spherical titanate cellulose composite aerogel capable of adsorbing radioactive ions and heavy metal ions |
| CN108383274A (en) * | 2018-03-08 | 2018-08-10 | 珠海市玛斯特五金塑胶制品有限公司 | Zinc-nickel wastewater treatment method |
| CN108704377A (en) * | 2018-05-28 | 2018-10-26 | 佛山市日日圣科技有限公司 | A kind of high-efficiency air filtering scavenging material |
| JP2019141836A (en) * | 2018-02-15 | 2019-08-29 | 禎尚 並木 | Substance recovery system, capturing hydrogel, and method for producing the same |
| CN111493092A (en) * | 2020-04-16 | 2020-08-07 | 江苏斯迪克新材料科技股份有限公司 | Silver-loaded nano zirconium phosphate polyurethane aerogel antibacterial agent, protective film and preparation method |
| CN111841457A (en) * | 2020-08-20 | 2020-10-30 | 广东工业大学 | Metal ion/zirconium phosphate aerogel, preparation method thereof and composite phase change energy storage material |
| WO2021078572A1 (en) * | 2019-10-23 | 2021-04-29 | IFP Energies Nouvelles | Process for treating aqueous fluid containing polymers with zirconium salts and alkali metal carboxylates |
| CN113134340A (en) * | 2021-04-26 | 2021-07-20 | 江苏东方维德环保科技有限公司 | Chromium ion adsorbent, preparation method, application method and regeneration method thereof, and treatment method of chromium in leather tail water |
| CN114085428A (en) * | 2021-12-03 | 2022-02-25 | 江苏万纳普新材料科技有限公司 | Antibacterial agent for plastic modification and preparation method thereof |
-
2022
- 2022-05-26 CN CN202210587212.9A patent/CN115057548B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4298723A (en) * | 1978-09-26 | 1981-11-03 | Occidental Research Corporation | Layered or amorphous acyclic organometallic inorganic polymers |
| US6229062B1 (en) * | 1999-04-29 | 2001-05-08 | Basf Aktiengesellschaft Corporation | Superabsorbent polymer containing odor controlling compounds and methods of making the same |
| JP2004016994A (en) * | 2002-06-19 | 2004-01-22 | National Institute Of Advanced Industrial & Technology | Heavy metal ion adsorbent, manufacturing method thereof and method of removing heavy metal ions using heavy metal ion adsorbent |
| US20060140840A1 (en) * | 2004-12-28 | 2006-06-29 | Raymond Wong | Method of synthesizing zirconium phosphate particles |
| CN1935356A (en) * | 2006-08-18 | 2007-03-28 | 南京大学 | Resin base adsorbent with high selectivity to heavy metal and preparing process thereof |
| EP2072117A1 (en) * | 2007-12-19 | 2009-06-24 | Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO | Sorbent material |
| CN105084603A (en) * | 2015-09-09 | 2015-11-25 | 杭州太一科技有限公司 | Treatment method and system of nickel-containing wastewater conforming to Water Pollutant Table III Discharge Standard |
| CN106512957A (en) * | 2016-11-21 | 2017-03-22 | 浙江农林大学 | Preparation method of spherical titanate cellulose composite aerogel capable of adsorbing radioactive ions and heavy metal ions |
| JP2019141836A (en) * | 2018-02-15 | 2019-08-29 | 禎尚 並木 | Substance recovery system, capturing hydrogel, and method for producing the same |
| CN108383274A (en) * | 2018-03-08 | 2018-08-10 | 珠海市玛斯特五金塑胶制品有限公司 | Zinc-nickel wastewater treatment method |
| CN108704377A (en) * | 2018-05-28 | 2018-10-26 | 佛山市日日圣科技有限公司 | A kind of high-efficiency air filtering scavenging material |
| WO2021078572A1 (en) * | 2019-10-23 | 2021-04-29 | IFP Energies Nouvelles | Process for treating aqueous fluid containing polymers with zirconium salts and alkali metal carboxylates |
| CN111493092A (en) * | 2020-04-16 | 2020-08-07 | 江苏斯迪克新材料科技股份有限公司 | Silver-loaded nano zirconium phosphate polyurethane aerogel antibacterial agent, protective film and preparation method |
| CN111841457A (en) * | 2020-08-20 | 2020-10-30 | 广东工业大学 | Metal ion/zirconium phosphate aerogel, preparation method thereof and composite phase change energy storage material |
| CN113134340A (en) * | 2021-04-26 | 2021-07-20 | 江苏东方维德环保科技有限公司 | Chromium ion adsorbent, preparation method, application method and regeneration method thereof, and treatment method of chromium in leather tail water |
| CN114085428A (en) * | 2021-12-03 | 2022-02-25 | 江苏万纳普新材料科技有限公司 | Antibacterial agent for plastic modification and preparation method thereof |
Non-Patent Citations (6)
| Title |
|---|
| L.B.KHALIL等: "modified silica for the extraction of cadimium(II), Copper(II) and Zine(II) ions from their aqueous solutions", ADSORPTION SCIENCE & TECHNOLOGY, vol. 19, no. 7 * |
| S.KHALAMEIDA等: "hydrothermal, microwave and mechanochemical modification of amorphous zirconium phosphate structure", 《JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY》, vol. 128 * |
| SHAN, SJ等: "highly porous zirconium-crosslinked graphene oxide/alginate aerogel beads for enhanced phosphate removal", 《CHEMICAL ENGINEERING JOURNAL》 * |
| 刘立华;杨正池;赵露;: "重金属吸附材料的研究进展", 中国材料进展, no. 02 * |
| 殷宪国;: "介孔磷酸盐材料及其应用前景", 磷肥与复肥, no. 02 * |
| 邓燕琳;: "重金属捕集剂强化混凝处理含锌电镀废水的试验研究", 广东化工, no. 01 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115057548B (en) | 2023-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101973479B1 (en) | Manufacturing Method of High Purity Lithium Carbonate with Controlled Size, Size Distribution And Shape | |
| CN109110883B (en) | Preparation of composite carbon-based nano zero-valent iron micro-electrolysis material and method for treating antimony-containing wastewater | |
| CN111499029B (en) | Two-stage method for quickly removing copper ions in copper ammonia complexing wastewater | |
| CN106542670A (en) | A kind of wet desulphurization waste water zero discharge treatment process | |
| CN111453826A (en) | Micro-nano porous polyaluminium coagulant aid and preparation method and application thereof | |
| CN111995155A (en) | Method for recycling ammoniacal nitrogen-containing acidic wastewater | |
| CN114749148B (en) | Composite modified banana peel biochar and preparation method and application thereof | |
| CN115057548B (en) | Steel paper production wastewater treatment and reuse method | |
| CN112607925A (en) | Silicon steel dilute acid wastewater zero-discharge treatment method and system | |
| CN114807601B (en) | Method for adsorbing rare earth element lanthanum by utilizing phosphoric acid modified kaolin | |
| CN115305574B (en) | Method for rapidly preparing whisker by using phosphogypsum and saline | |
| CN110981031A (en) | Chemical nickel waste water treatment method | |
| CN103007588B (en) | The method of the ammonium sulfate liquor purification that a kind of sintering flue gas ammonia method desulfurizing technique produces | |
| CN115403049A (en) | Purification method and purification system of quartz sand | |
| CN109052731B (en) | Method for efficiently removing antimony from printing and dyeing wastewater | |
| CN110182922B (en) | Method for treating chromium-containing wastewater | |
| JP4039820B2 (en) | Wastewater treatment method | |
| CN115716697A (en) | Preparation method of low-chlorination external-drainage recycled circulating water | |
| CN111362460A (en) | Efficient recycling treatment method for reclaimed water of thermal power plant | |
| CN110193339A (en) | A kind of magnetism host material and preparation method thereof and the application in phosphorous starch wastewater purified treatment | |
| CN218755198U (en) | Filtrate defluorination and thallium removal system in lepidolite treatment process | |
| CN109626628A (en) | A kind of processing method of high fluorine waste water | |
| CN112707445B (en) | Method for synthesizing potassium polysulfide iron coagulant at low temperature | |
| CN111675369B (en) | Method for treating electroplating complex heavy metal wastewater | |
| CN117326661A (en) | Sewage treatment medicament, and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |